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Thread: WTC Transit Hub - by Santiago Calatrava

  1. #2896

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    ^^^That isn't the first time we've seen those connectors, they've been present in a couple other models or renderings I believe.

  2. #2897
    Disgruntled Optimist lofter1's Avatar
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    If those have been made part of the final structure then Calatrava's entire concept (open wings) has been compromised.

  3. #2898

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    Quote Originally Posted by lofter1 View Post
    The "aeroelastic model" shows connecting beams across the entire length of the ribs, on both sides, way out near the ends. Renders haven't shown such any sort of external connector as seen here.

    Am I correct to assume that the rib connectors were added to the model for stability (or possibly to aid in measurements), but won't be part of the oculus building when constructed?


    Those "connectors" are called purlins and are ment add stability to the rafters against wind load, they also serve as a main connector to distribute the loads of every rafter.

    Rendering is outdated, these ones depict the current design.





    dbox via CGarchitect

  4. #2899

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    Quote Originally Posted by infoshare View Post
    I guess I am thinking that the 'spikes' will be tightly spaced together (which on second thought their not) and thus become some sort of maintenance problem. So now all we need to worry about is people jumping off neighboring buildings wearing a 'wingsuit' . HeHe
    Ribs & rafters are spaced 5'-6" at centers.

  5. #2900
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    God I hate how this thing is jammed up next to the other buildings.

  6. #2901

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    Quote Originally Posted by O' Daniel View Post
    Ribs & rafters are spaced 5'-6" at centers.
    So that settles that : Not "tightly spaced" at all. Thanks.

  7. #2902
    Disgruntled Optimist lofter1's Avatar
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    Are the addition of the purlins a dumbing down of Calatrava's original design?

    Or did Calatrava originally show something that was inherently unfeasible to build?

  8. #2903
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    Jmho but the movable wings were so wildly expensive they had to change it.

  9. #2904
    Disgruntled Optimist lofter1's Avatar
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    The wings are still planned to move and open at the center, right?

  10. #2905
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    I thought that was killed.

  11. #2906
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    it was killed. Wings will not move.

  12. #2907

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    Quote Originally Posted by stache View Post
    Jmho but the movable wings were so wildly expensive they had to change it.

    I dont think that losing the wings was such a bad thing. The whole point of the open top was to let air in, but in reality you really wouldnt want to. In the winter you have heat loss issues to worry about and in the summer the A/c is blasting anyhow. Also if they were to open you would have to worry about pigeons turning the inside rafters into roosts and such. Pigeon crap on a white interior sounds like a nightmare.

  13. #2908
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    I'm with you. Further, I think if the outside wings were reduced the whole building would look less jammed up next to towers #2 & 3.

  14. #2909

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    Calatrava is the poster child architect for irrational exuberance. So many impractical and outrageously costly features.

  15. #2910

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    The first alteration I can remember was that the number of ribs was doubled and made thicker. I think at the same time, the exterior glass panels on the wings were eliminated.

    I may be wrong, but I thought that when the moving wing mechanism was eliminated, simpler (and less costly) opening glass along the center spine replaced it. I wasn't aware when or if that was also eliminated.

    I've seen those purlins in previous renderings.

    Quote Originally Posted by Bkguy1985 View Post
    I dont think that losing the wings was such a bad thing. The whole point of the open top was to let air in, but in reality you really wouldnt want to. In the winter you have heat loss issues to worry about and in the summer the A/c is blasting anyhow. Also if they were to open you would have to worry about pigeons turning the inside rafters into roosts and such. Pigeon crap on a white interior sounds like a nightmare.
    Point taken about the pigeons, but not the A/C, especially in high vaulted spaces.

    The open top would let air out, not in. Hot air is lighter, and would rise up and out of the oculus, while the denser cold air would collect nearer the floor, where the people are.
    Last edited by ZippyTheChimp; July 24th, 2012 at 05:44 PM.

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